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Daikin Manuals
Air Conditioner
RXS12DAVJU
Service manual
Daikin RXS12DAVJU Service Manual
Inverter pair wall mounted type h-series
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Safety Considerations
Part 1
List of Functions
Functions
Part 2
Specifications
SEER 16 Models
SEER 13 Models
Part
Part 3
Printed Circuit Board Connector Wiring Diagram
Ftxs09/12Hvju
Printed Circuit Board Connector Wiring Diagram
Ftxs15/18/24Hvju
Printed Circuit Board Connector Wiring Diagram
Rxs09/12Davju, Rx09/12Favju
Rxs15/18/24Dvju, Rx15/18/24Fvju
Part
Main Functions
Frequency Principle
Power-Airflow Dual Louvers, Wide-Angle Fins and Auto-Swing
Fan Speed Control for Indoor Units
Program Dry Function
Automatic Operation
Thermostat Control
NIGHT SET Mode
Intelligent Eye
HOME LEAVE Operation
Inverter POWERFUL Operation
Other Functions
Function of Thermistor
Control Specification (09/12 Class)
Mode Hierarchy
Frequency Control
Control Specification (09/12 Class)
Controls at Mode Changing / Start-Up
Discharge Pipe Temperature Control
Input Current Control
Freeze-Up Protection Control
Heating Peak-Cut Control
Fan Control
Liquid Compression Protection Function 2
Defrost Control
Electronic Expansion Valve Control
Malfunctions
Forced Operation Mode
Additional Functions
Forced Operation Mode
Control Specification (15/18/24 Class)
Mode Hierarchy
Frequency Control
Control Specification (15/18/24 Class)
Controls at Mode Changing / Start-Up
Discharge Pipe Temperature Control
Input Current Control
Freeze-Up Protection Control
Heating Peak-Cut Control
Fan Control
Low Hz High Pressure Limit
Liquid Compression Protection Function 2
Defrost Control
Electronic Expansion Valve Control
Malfunctions
Forced Operation Mode
Additional Functions
Part
Function and Control
Part 5
Operation Manual
System Configuration
Ftxs09/12Hvju
Ftxs15/18/24Hvju
Part 6
Service Diagnosis
Caution for Diagnosis
Problem Symptoms and Measures
Service Check Function
Troubleshooting
Error Codes and Description
Indoor Unit PCB Abnormality
Freeze-Up Protection Control or High Pressure Control
Fan Motor or Related Abnormality
Thermistor or Related Abnormality (Indoor Unit)
Signal Transmission Error (between Indoor and Outdoor Unit)
OL Activation (Compressor Overload)
Compressor Lock
DC Fan Lock
Input Overcurrent Detection
Four-Way Valve Abnormality
Discharge Pipe Temperature Control
High Pressure Control in Cooling
Position Sensor Abnormality
DC Voltage / Current Sensor Abnormality
CT or Related Abnormality
Thermistor or Related Abnormality (Outdoor Unit)
Electrical Box Temperature Rise
Radiation Fin Temperature Rise
Output Overcurrent Detection
Refrigerant Shortage
Over-Voltage Detection
Low-Voltage Detection
Check
How to Check
Four Way Valve Performance Check
Thermistor Resistance Check
Installation Condition Check
Discharge Pressure Check
Power Supply Waveforms Check
Capacitor Voltage Check
Hall IC Check
Main Circuit Short Check
Part 7
Removal Procedure
Ftxs09/12Hvju
Removal of Air Filter
Removal of Front Grille
Removal of Horizontal Blades (Louvers) and Vertical Blades (Fins)
Removal of Electrical Box, PCB and Swing Motor
Removal of Heat Exchanger
Install of Drain Plug
Removal of Fan Rotor and Fan Motor
Ftxs15/18/24Hvju
Removal of the Air Filter / Front Panel
Removal of Front Grille
Removal of Horizontal Blades (Louvers) / Vertical Blades (Fins)
Removal of Electrical Box / PCB / Swing Motor
Removal of Heat Exchanger
Removal of Fan Rotor / Fan Motor
Rxs09/12Davju, Rx09/12Favju
Removal of Panels and Fan Motor
Removal of Electrical Box
Removal of Reactor and Partition Plate
Removal of Sound Blanket
Removal of Four-Way Valve
Removal of Compressor
Removal of PCB
Rxs15/18/24Dvju, Rx15/18/24Fvju
Removal of Panels and Plates
Removal of Fan Motor / Outdoor Fan
Removal of PCB / Electrical Box
Removal of the Reactor
Removal of Sound Blanket
Removal of Four-Way Valve
Removal of Electronic Expansion Valve
Removal of Compressor
Part 8
Other Considerations
Trial Operation
Other Considerations Part
Jumper Settings
Application of Silicon Grease to Power Transistor and Diode Bridge
Part 9
Appendix
Piping Diagrams
Indoor Units
Outdoor Units
Wiring Diagrams
Indoor Units
Outdoor Units
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Quick Links
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Error Codes and Description
Download this manual
See also:
Engineeiring Data
,
Operating Manual
Inverter Pair
Wall Mounted Type H-Series
[Applied Models]
Inverter Pair : Heat Pump
SiUS04 - 904
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